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Insomnia with objective short sleep duration is associated with type 2 diabetes: A population-based study
Alexandros N Vgontzas1, Duanping Liao, Slobodanka Pejovic
1Sleep Research and Treatment Center, Department of Psychiatry, Pennsylvania State University College of Medicine, Hershey, Pennsylvania, USA. avgontzas@psu.edu
Diabetes Care
|July 31, 2009
Summary
Chronic insomnia combined with short sleep duration significantly increases diabetes risk. This highlights the underestimated cardiometabolic impact of insomnia and insufficient sleep.
Area of Science:
- Sleep Medicine
- Endocrinology
- Public Health
Background:
- Insomnia and short sleep duration are independently linked to increased morbidity.
- The combined impact of chronic insomnia and objectively short sleep on diabetes risk requires further investigation.
Purpose of the Study:
- To examine the joint effects of insomnia and objective short sleep duration on diabetes risk.
- To determine if objective sleep duration modifies the association between chronic insomnia and diabetes.
Main Methods:
- 1,741 participants underwent polysomnography in a sleep laboratory.
- Insomnia was defined as a complaint lasting >or=1 year; poor sleep involved difficulty initiating or maintaining sleep.
- Diabetes was assessed via fasting blood glucose or medication use, with adjustments for confounders.
Main Results:
- Chronic insomnia, not merely poor sleep, was associated with higher diabetes risk.
- Individuals with insomnia and
- Insomniacs sleeping 5-6 hours also showed elevated risk (OR 2.07).
Conclusions:
- Insomnia co-occurring with short sleep duration increases diabetes odds.
- Objective sleep duration is a potential predictor of the cardiometabolic consequences of chronic insomnia.
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